摘要: Patients with severe male factor are more likely to be carriers of chromosomal abnormalities both in their sperm and lymphocytes. These include numerical alterations, structural Y chromosome microdeletions. Gene mutations that cause infertility studies identifying polymorphic regions that, conjunction environmental factors, may associated have been described. Until further gene identified, standard genetic testing infertile men is largely limited karyotyping, analysis, cystic fibrosis mutation analysis.